List of available polygons for id = 4263184

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2023-06-26 12:36:28.249871	210275	18.3220383818264	WKT	GeoJSON	poly	image
0.040000-0.010000-0.010000	2023-06-26 12:37:01.321155	844	18.4037849368004	WKT	GeoJSON	poly	image
0.040000-0.020000-0.010000	2023-06-26 12:37:46.074465	1268	18.4064879865769	WKT	GeoJSON	poly	image
0.040000-0.020000-0.020000	2023-06-26 12:38:13.401475	499	18.3981085984402	WKT	GeoJSON	poly	image
0.050000-0.030000-0.020000	2023-06-26 12:38:27.673284	621	18.436922194336	WKT	GeoJSON	poly	image
0.080000-0.040000-0.040000	2023-06-26 12:39:11.885985	203	18.4997729715799	WKT	GeoJSON	poly	image

Generate a simplified polygon

X, Y, Z are parameters for the following postgis equation. The default values are chosen according to the size of the original geometry to give a slighty bigger geometry, without too many nodes.

Note that:

X > 0 will give a polygon bigger than the original geometry, and guaranteed to contain it.
X = 0 will give a polygon similar to the original geometry.
X < 0 will give a polygon smaller than the original geometry, and guaranteed to be smaller.

SQL requests:

X > 0: ST_Union(ST_MakeValid(ST_SimplifyPreserveTopology(geom, 0.00001)), ST_Buffer(ST_SimplifyPreserveTopology(ST_SnapToGrid(ST_Buffer(geom, X), Y), Z)))
X = 0: ST_Buffer(ST_SimplifyPreserveTopology(ST_SnapToGrid(ST_Buffer(geom, X), Y), Z)))
X < 0: ST_Intersection(geom, ST_Buffer(ST_SimplifyPreserveTopology(ST_SnapToGrid(ST_Buffer(geom, X), Y), Z)))